Higher order power corrections in inclusive B decays

We discuss order 1/ m b 4 and 1/ m b 5 corrections in inclusive semileptonic decay of a B meson. We identify relevant hadronic matrix elements of dimension seven and eight and estimate them using the ground-state saturation approximation. Within this approach the effects on the integrated rate and o...

Full description

Saved in:
Bibliographic Details
Published in:The journal of high energy physics 2010-11, Vol.2010 (11), Article 109
Main Authors: Mannel, Th, Turczyk, S., Uraltsev, N.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Decay
Elementary Particles
High energy physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
String Theory
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We discuss order 1/ m b 4 and 1/ m b 5 corrections in inclusive semileptonic decay of a B meson. We identify relevant hadronic matrix elements of dimension seven and eight and estimate them using the ground-state saturation approximation. Within this approach the effects on the integrated rate and on kinematic moments are estimated. The overall relative shift in V cb turns out about +0 . 4% as applied to the existing fits. Similar estimates are presented for B → X s + γ decays.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP11(2010)109